223021542 has 32 divisors (see below), whose sum is σ = 463488480. Its totient is φ = 71456000.

The previous prime is 223021537. The next prime is 223021567. The reversal of 223021542 is 245120322.

223021542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37792 + ... + 43292.

It is an arithmetic number, because the mean of its divisors is an integer number (14484015).

Almost surely, 2^223021542 is an apocalyptic number.

223021542 is an abundant number, since it is smaller than the sum of its proper divisors (240466938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223021542 is a wasteful number, since it uses less digits than its factorization.

223021542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 223021542 is about 14933.9057851588. The cubic root of 223021542 is about 606.4322254922.

Adding to 223021542 its reverse (245120322), we get a palindrome (468141864).

The spelling of 223021542 in words is "two hundred twenty-three million, twenty-one thousand, five hundred forty-two".